Paper-feed mechanism.



D. T. FITTS.

PAPER FEED MECHANISM.

APPLICATION TILED ,MAR. 11, 1914.

r 1,128,434. Patented Feb. 16, 1915.

2 SHEETS-SHEET l.

D. T; FITTS.

PAPER FEED MECHANISM.

APPLICATION FILED MAR.11, 1914.

1,128,434. I Patented Feb. 16, 1915.

2 SHEETS-SHEET 2.

t Q Q Q (g g Wag/6566 lmefoibrx de'm/ i aw flz y J F DUDLEY 1'. arms. or HAVERHILL, MASSACHUSETTS.

PAPER-FEED MECHANISM.

Specification of Letters Patent.

Patented Feb. 16, 1915.

Application filed March 11, 1914. Serial No. 823,987.

To all whom it may concern:

Be it known that I, DUDLEY T. Fl'r'rs, a resident of Haverhill, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Paper-Feed Mechanism, of which the following is a full, clear, and exact description.

The invention relates to paper-feeding devices or attachments for calculating machines or the like.

In calculating machines, provided with printing attachments, it is customary to print upon a web of paper supplied from a roll. The strip of paper, as a result of being wound on roll and often times remaining rolled for a long period before it is used, has an inherent tendency to curl or roll up after being printed upon the machine. In calculating machines, strips containing calculations are torn from the web at the conclusion of a calculation or operation, and because of the tendency of these strips to curl up, they cannot be conveniently handled without holding both ends of the strip or weighting them down on a table, and this tendency of the strips to curl retards the speed of the operator in making calculations upon the machines from a series of these strips, as is sometimes done in aggregating figures from a long strip or a series of shortstrips.

The invention designs to overcome these objections resulting from the tendency of the strips containing calculations to curl up, and this object is attained by providing means for scraping the outer face of the web as it passes to the machine, so that after the web has been printed and a portion or strip thereof is severed from the web, it will be perfectly flat and without tendency to curl. The printed strips without any tendency to curl may be readily and conveniently handled by the operator, so that the calculations and work will be facilitated.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Figure 1 is a side elevation of a calculating machine, having the invention applied thereto. Fig. 2 is a front elevation of the paper-feeding device. Fig.

3 is a vertical longitudinal section through sa1d device, the printing platen of the calculating machine being also shown.

The invention 1s shown as an attachment for a calculating machine A which may be of any suitable construction. The calcu lating machine comprises a platen B, which is operated in manner well understood in the art to feed a web of paper line by line.,

A tearing-bar C is suitably supported above the platen so that the web of paper which is fed through the machine and with the calculations printed thereon, may be severed from the web whenever desired.

Brackets 10, secured to and projecting rearwardly from the back of the machine, carry cross-rods 11 and 12. Theimproved paper-feed device comprises a frame, consisting of sides ll and15, which are, rigidly secured together. in spaced relation by a cross-plate 16 to which both of said sides are secured. These frame-sides are provided with slots 17 and 18 adapted to receive rods 11 and 12 respectively, to removably Supportthe frameat the rear of the ma which is journaled in the frame-sides 14E and 15 and extends therethrough. From roll 24, the web passes to and around the platen B and under the tearing bar C. The printing mechanism of the machine is adapted to impress the paper on the platen.

Between the idler roll 24 and the platen,

one face of the web rubs against the edge of a scraper-bar 27 which is held in slots 28 formed in the frame-sides and has its Scraping edge disposed adjacent the roll 24: which is formed and arranged to press the web against the edge of said bar, so that as a result of this scraping action on that surface of the web which has been on the outside of the paper roll, the curl will be taken out of the paper and it will be inherently fiat or Straight. Springs 30 are connected to the ends of the scraper-bar 27 to hold it normally in operative position adjacent the roll 24: and these springs are connected to pins 40 'on frame-sides 1d and 15 respectively. The scraping edge of bar 27 is disposed adjacent the periphery of roll 24 so that the scraper Will be effective to act upon the Web of paper With suflicient friction to eliminateits tendency to curl, and Without the necessity of putting the paper under tension. Springs 30 permit the scraper-bar 27 to be Withdrawn from slots 28 for conveni'ence ind'i'recting the end of the Web from roll 24 to platen BWhen a roll of p'aper has beenused and is to be replaced by a new r011: V p

In operation, the platen, when its lineplace mechanism operated, Will draw the paper from roll around idler-roll 2-1 and across the edge of the scraper-bar 27, so that after the paper has been taken from the paper roll and before it p'as'sestotheplaten, the scraper-bar Will haveacted upon the paper t6 remove all tendency to curl. As the paper is printed, the operator Will tear off the printed slip by means of the tearing-bar G and as a result of the action of the scra er bar 27, the printed strips, When severed from the web, Will be Without tendency to curl.

The invention thus exemplifies an improved Web feed device whereby paper, Without tendency to curl, Will be supplied to the printingmechanism so that-as the strips are draWn from the Web, the handling of the strips Will be facilitated, because of their inherent tendency to remain there instead of curlingwhen free. I

The invention is not to be understood as restricted to the details set forth, since these may be modified Within the scope of the Copies of this patent may be obtained 1361' five cents each, by addressing the Commissioner of Washington, D. C. 7

appended claims Without; departing from thespirit and scope of the invention.

Having thus described the invention, What I claim asnew and desire to secure by Letters Patent, is:

.1; An attachment for calculating machines, comprising a frame adapted to be connected to such a machine, means for supporting a roll of paper on said frame, and yielding scraping means engaging the paper frictionally to remove the curl therefrom.

2. an attachment for calculating n1achines con'1prising a frame adapted to be connected to such a machine, means for supporting a roll of paper on' the frame, an idler roll supported in the frame and receiving the paper Web from saidpaper roll, and a scraper-bar disposed between said idler roll and the calculating machine and engaging one surface of the paper frictionally to remove the curl therefrom.

3. An attachment for calculating machines and the like, comprising a frame adapted to be connected detachably to such a machine, means on the frame for supporting a roll of paper, an idler roll supported on the frame and receiving the paper Wen from said paper roll, a scraper-bar engaging one surface of the paper frictionally to remove the curl therefrom and disposed between said idler roll and the calculating machine, and means for holding the scraper bar yieldingly and removably in its operative position.

DUDLEY T. FITTS. Witnesses F. H. HARRIMA'N. I. DI. HILL;

Patents, 

